bCircle

Syntax

int bCircle(int x, int y, int centerx, int centery, int radius)

Arguments

x, y

Current x and y coordinates in the image

centerx, centery

Center coordinates of the circle

radius

Radius of the circle

Return

If the supplied x and y values lie within the defined circle a value of 1 will be returned, otherwise 0.

Description

Lets you easily draw a circle on the image.

Example

%ffp 

ctl(0): "Center X", range=(0,255), val=128
ctl(1): "Center Y", range=(0,255), val=128
ctl(2): "Radius", range=(0,128), val=64

ForEveryTile:
{

  int Draw;

  for (y=y_start; y&lt;y_end; y++) {
    updateProgress(y,y_end);
    for (x=x_start; x&lt;x_end; x++) { 
      Draw = bCircle(x,y,ctl(0),ctl(1),ctl(2));
      for (z=0; z&lt;Z; z++) { 
        if (Draw) pset(x,y,z,255);
      }
    }
  }

  return true;
}

Also see

bRect, bRect2, bTriangle